原子能级数
AES算法的实现。
用法示例：
< script src = "../src/aes.js" > < / script >
< script src = "../src/aes-ctr.js" > < / script >
< script >
var secretKey = '08090A0B0D0E0F10121314151718191A1C1D1E1F21222324262728292B2C2D2E';
var plaintext = 'Text to encoding!';
var keySize = 256;
var encryptedText = Aes.Ctr.encrypt(plaintext, secretKey, keySize);
var decryptedText = Aes.Ctr.decrypt
